Professor Friedman
SOLUTION TO HW: THE NORMAL DISTRIBUTION
PROBLEM 1:
Suppose that New York State high school average scores, for students who graduate, are normally
distributed with a population mean
Professor Friedman
SOLUTIONS: TWO-SAMPLE HYPOTHESIS TESTING
TWO-SAMPLE T-TESTS
PROBLEM 1:
Who lives longer, married or unmarried men? Test at =.01
Single Men
Married Men
1 = 72.5 years
S1 = 7.0 years
SOLUTIONS TO HOMEWORK: REGRESSION
SOLVE THE FOLLOWING PROBLEMS IN TWO WAYS:
(a) USING CALCULATOR
(b) USING MS EXCEL
Write out the regression equation. What is the correlation coefficient? What is r-sq
SOLUTIONS TO HOMEWORK: CORRELATION
(Problem 1) The data below shows the reading and math scores of 12 students. Calculate the
correlation coefficient.
Reading Scores
1
1
2
3
3
4
5
6
6
7
8
8
Math Score
Professor Friedman
SOLUTION: STATISTICAL INFERENCE (P)
ONE-SAMPLE Z TEST FOR PROPORTION (P)
PROBLEM 1:
A researcher claims that at most 10% of smokers will develop lung cancer. A sample of
600 smokers
Professor Friedman
SOLUTION TO HOMEWORK: EXPECTED VALUE
PROBLEM 1:
What is the expected value of a lottery ticket where there is only two chances in a million of winning
the grand prize of $10 Million
Professor Friedman
The One-Sample t DISTRIBUTION
SOLUTION TO HOMEWORK: STATISTICAL INFERENCE
THE t DISTRIBUTION
PROBLEM 1:
A company manufactures bars of soap that are supposed to weigh exactly (on av
Tax Accounting
13.
When an accrual basis taxpayer finances the construction of its building by
borrowing, the interest is deductible in the year it accrues.
https:/quizlet.com/161277871/tax-exam-2-pra
Tax acct
13.
When an accrual basis taxpayer finances the construction of its building by
borrowing, the interest is deductible in the year it accrues.
https:/quizlet.com/161277871/tax-exam-2-practice-
Generation-skipping transfers arise when there is one of the following:
1. Taxable terminations (TT) - Any termination of a trust interest unless at the termination of the
trust, the trust property tr
It may be hard to believe, but the U.S. is one of ONLY 2 countries around the globe
that taxes its citizens on WORLDWIDE income! What this means, is that IF you
retain U.S. Citizenship, the American G
Solutions
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19. E: This required the use of the complement rule and the multiplication rule of probabil
Name:_
Professor Donoghue
STAT 9708 Midterm Exam
Clearly circle your answer to each multiple choice question. Good luck!
Q1
Q2
Q3
Q4
Larger
Mar 19th, 2015
Q5
Q6
Narrative: Entrance exam
Suppose a cert
Wells Fargo & Company (WFC)
Next Rpt Date:15 Jan '16
TARGETS & RATINGS
$54.34
Data as of: 10-Dec-2015
100 Day Mean
Institutional Investor
Broker
U.S. Dollar
Analyst
Mean
Rating Date
10 Dec '15
Rating
Charles Schwab Corporation (SCHW)
Next Rpt Date:13 Jan '16
TARGETS & RATINGS
$33.26
Data as of: 10-Dec-2015
100 Day Mean
U.S. Dollar
Broker
Analyst
Mean
Rating Date
10 Dec '15
Credit Suisse
Christian
Bank of America Corporation (BAC)
Next Rpt Date:19 Jan '16
TARGETS & RATINGS
$17.20
Data as of: 10-Dec-2015
100 Day Mean
Institutional Investor
Broker
U.S. Dollar
Analyst
Mean
Rating Date
10 Dec '15
R
JPMorgan Chase & Co. (JPM)
Next Rpt Date:14 Jan '16
TARGETS & RATINGS
$65.61
Data as of: 10-Dec-2015
100 Day Mean
Institutional Investor
Broker
U.S. Dollar
Analyst
Mean
Rating Date
10 Dec '15
Rating
P
Independence
Do you know your
INDEPENDENCE?
1-Do you know your
independence?
A bank retains a CPA firm to perform an
audit. During the period of the professional
engagement, a manager in the CPA firm
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R operation
Note 1
Take the Excel file with the net weight data (with the column label) and put that data onto a fresh
worksheet by itself. Save that worksheet as a csv file to your Desktop.
To see wh
Baruch College, Fall 2015, Prof. L. Tatum
Name: _
STA 9700 Midterm I
This is a closed book, closed notes exam. Points are shown in the [ ] brackets. If you run
out of room, use the blank page to the l
Baruch College, 9-22-16
STA 9700: Homework 2 Solutions
Prof. L. Tatum
2.1 Looking at Fig. 2.1 in Lecture Notes 2, we see that there is a general rise in the
NetWt of the bags as the Count increases. W
Chapter 13:
Factor Analysis
13.1 Introduction
13.2 Orthogonal factor model
13.3 Estimation of loadings and communalities
13.4 Choosing the number of factors
13.5 Rotation
13.1 Introduction
In fa
# Homework 3 STA9792
# Baruch College, Fall 2017
# Christopher Lang (EMPL ID: 12091305)
# Python 3.5.3 Anaconda Distribution, Windows 10 64-bit
import numpy as np
from scipy.sparse import lil_matrix
f
import re
import os
import sys
from collections import defaultdict
workdir = "C:/Users/Christopher Lang/Dropbox/Education/Baruch College/Fall
2017/STA 9792 - Spectial Topics in Statistics/Homework and